Collection
Technical Report Archive and Image Library
973
National Advisory Committee for Aeronautics Collection
557
Office of Scientific & Technical Information Technical Reports
548
TRAIL Microcard Collection
243
Texas Attorney General Opinions
158
Government Documents A to Z Digitization Project
21
Texas State Publications
18
USDA Farmers' Bulletins
11
Serial/Series Title
NACA Research Memorandums
340
NACA Technical Notes
190
Atomic Energy Commission Reports
135
United States Geological Survey Reports
90
Hanford Works Reports
61
Trace elements investigations report
52
HW (Series)
42
University of California Radiation Laboratory Reports
42
Oak Ridge National Laboratory Reports
30
BMI (Series)
24
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Wind-Tunnel Investigation to Determine the Horizontal- and Vertical-Tail Contributions to the Static Lateral Stability Characteristics of a Complete-Model Swept-Wing Configuration at High Subsonic Speeds
Results regarding an investigation to determine the horizontal- and vertical-tail contributions to the static lateral stability of a complete-model swept-wing configuration at high subsonic speeds. Generally, Mach number effects within the range studied and wing effects on the tail contribution were small and the overall trends of the data of the present investigation agreed with those which have been established at low speeds.
Date:
July 10, 1953
Creator:
Wiggins, James W.; Kuhn, Richard E. & Fournier, Paul G.
Object Type:
Report
System:
The UNT Digital Library
Sash Greenhouses.
Describes sash greenhouses. Provides plans for constructing and heating greenhouses.
Date:
July 1958
Creator:
Beattie, James H. (James Herbert), b. 1882
Object Type:
Book
System:
The UNT Digital Library
Investigation of the Lake Shore Copper Deposits, Pinal County, Arizona
Report issued by the U.S. Bureau of Mines on the drilling for copper deposits near Pinal County, Arizona in 1949. Topographic and geologic mapping, drilling, and field tests were studied. Tables, maps, and illustrations are presented.
Date:
July 1950
Creator:
Romslo, T. M.
Object Type:
Report
System:
The UNT Digital Library
Development of a Mobile Compressor and Utility Station
Report issued by the U.S. Bureau of Mines on the development of a mobile compressor and utility station in the oil-shale mine near Rifle, Colorado during 1949. The report includes photographs and illustrations of the mobile station.
Date:
July 1950
Creator:
Wright, Fred D. & Ballinger, Homer J.
Object Type:
Report
System:
The UNT Digital Library
Report on the Possible Effects on the Surrounding Population of an Assumed Release of Fission Products into the Atmosphere from a 300 Megawatt Nuclear Reactor Located at Lagoona Beach, Michigan
Report issued by the APDA over studies conducted on the release of radioactive particles near Lagoona Beach, Michigan in 1955. "The possible effects on the surrounding population of a release of fission products at the Lagoona Beach site" (p. 1) are discussed. This report includes tables, maps, and illustrations.
Date:
July 1957
Creator:
Gomberg, Henry J.; Bassett, Thomas; Velez, Carlos & Donnell, Alton P.
Object Type:
Report
System:
The UNT Digital Library
Synthetic Liquid Fuels: Annual Report of the Secretary of the Interior for 1951; Part 1 - Oil from Coal
Report issued by the Bureau of Mines over an annual study of synthetic liquid fuel production. Results of the annual study are presented and discussed. This report includes maps, tables, illustrations, and photographs.
Date:
July 1952
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Recovery of Oil in California By Secondary Methods: In Two Parts - Part 1. San Joaquin Valley Oil Fields
Report issued by the U.S. Bureau of Mines on the study of secondary-recovery methods of oil production in California. The report discusses methods and properties of this type of oil production, focusing on air injection. This report is in two parts, and contains tables and maps.
Date:
July 1952
Creator:
Loomis, A. G.; Fried, A. N. & Crowell, D. C.
Object Type:
Report
System:
The UNT Digital Library
Investigation of the Millett Copper Deposit Iliamna Lake, Southwestern Alaska
Report of investigations issued by the U.S. Bureau of Mines on the Millet copper deposit near Lake Iliamna. The investigation included trenching, drilling, and mineralization zone sampling. This report contains tables, and maps.
Date:
July 1952
Creator:
Rutledge, Franklin A. & Mulligan, J. J.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Knott County, Kentucky
Report of investigations issued by the U.S. Bureau of Mines regarding the estimates of known reserves of coking coal located in Knott County, Kentucky. The investigation also discusses properties of coal and coal blends from the area. This report includes maps and tables.
Date:
July 1952
Creator:
Dowd, James J.; Toenges, Albert L.; Abernethy, R. F. & Reynolds, D. A.
Object Type:
Report
System:
The UNT Digital Library
Rice production in the southern states.
Describes the best climate, soils, and irrigation systems for producing rice successfully in the southern United States.
Date:
July 1952
Creator:
Jones, Jenkin W. (Jenkin William), 1888-; Dockins, J. O.; Walker, R. K. (Rufus K.) & Davis, W. C.
Object Type:
Book
System:
The UNT Digital Library
Tung production.
Discusses planting, cultivating, and harvesting tung trees for oil production. Describes insect enemies and diseases.
Date:
July 1957
Creator:
Potter, George F. (George Frederick), b. 1891. & Crane, Harley Lucius, 1891-
Object Type:
Book
System:
The UNT Digital Library
Harvesting and handling citrus fruits in the Gulf states.
Describes how to harvest, package, transport, and handle citrus fruits that are grown in the Gulf States, preventing damage and maintaining quality.
Date:
July 1950
Creator:
Winston, John R. (John Robinson), b. 1890
Object Type:
Book
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves and the Preparation and Carbonizing Properties of Coking Coal in Sequatchie County, Tennessee
Report issued by the Bureau of Mines over investigations of coking coal reserves of Sequatchie County, Tennessee. Testing to determine suitability for producing metallurgical coke is also presented. This report includes tables, graphs, maps, illustrations, and photographs.
Date:
July 1955
Creator:
Williams, Lloyd; Hershey, Robert E.; Abernethy, R. F.; Gandrud, B. W. & Reynolds, D. A.
Object Type:
Report
System:
The UNT Digital Library
Fundamental Flashback, Blowoff, and Yellow-Tip Limits of Fuel Gas-Air Mixtures
Report issued by the Bureau of Mines over experiments conducted on fuel-gas mixtures. The results of these experiments are presented. This report includes tables, graphs, illustrations, and photographs.
Date:
July 1956
Creator:
Grumer, Joseph; Harris, Margaret E. & Rowe, Valeria R.
Object Type:
Report
System:
The UNT Digital Library
National Motor-Gasoline Survey: Winter 1951-52
Report of investigations issued by the U.S. Bureau of Mines summarizing the properties of motor fuel sold at service stations during December of 1951. The investigations include analyzes the properties of the fuel samples collected. This report contains graphs and tables.
Date:
July 1952
Creator:
Blade, O. C.
Object Type:
Report
System:
The UNT Digital Library
ELECTRICAL PROPERTIES OF ORGANIC SOLIDS. I. KINETICS AND MECHANISMOF CONDUCTIVITY OF METAL-FREE PHTHALOCYANINE
Techniques involving the use of high-intensity short-duration light pulses have been applied t o the study of the kinetics of photoconductivity in films of metal-free phthalocyanine. These experiments, in conjunction with measurements of steady-state photoconductivity, are consistent with the following scheme. The principal route for the formation of charge carriers is via the first excited singlet state, although the lowest triplet state can, t o some extent, contribute to charge - carrier production. The mobility of the carriers is low and is concentration-dependent, being lower at higher carrier concentration. The decay of the photocurrent is the result of a diffusion-limited bimolecular recombination, with a capture radius of approximately one molecular diameter. The experiments indicate that carriers produced thermally in the dark do not interact with light-produced carriers.
Date:
July 29, 1959
Creator:
Tollin, Gordon; Kearns, David R. & Calvin, Melvin.
Object Type:
Report
System:
The UNT Digital Library
ELECTRICAL PROPERTIES OF ORGANIC SOLIDS. II: EFFECTS OF ADDEDELECTRON ACCEPTOR ON METAL-FREE PHTHALOCYANINE
The addition of ortho-chloranil to the surface of films of metal-free phthalocyanine has been found (a) to increase the dark conductivity of such films by as much as 10{sup 7}, (b) to increase the steady-state photoconductivity by as much as 10{sup 5}, and (c) to result in the formation of unpaired electrons whose concentration decreases reversibly as a result of illumination. These systems exhibit a light-induced polarization, the phthalocyanine layer becoming more positive with respect t o the ortho-chloranil layer. Kinetic studies demonstrate that, upon illumination, a single process (time constant = 40 seconds) results in the increase in conductivity, the decrease in unpaired spins, and the increase in polarization. The results are consistent with the following scheme. An electron transfer from phthalocyanine to ortho-chloranil occurs in the dark at room temperature, producing holes in the phthalocyanine layer and ortho-chloranil negative ion radicals (high conductivity, ESR signal). Illumination results in the transfer of an electron from an excited phthalocyanine molecule to the ortho-chloranil negative ion, producing further phthalocyanine holes and ortho-chloranil double-negative ion (increase in conductivity, increase in polarization, decrease in ESR signal). By equating spin concentration with charge - carrier concentration (phthalocyanine holes) it is possible to calculate a …
Date:
July 29, 1959
Creator:
Kearns, David R.; Tollin, Gordon & Calvin, Melvin
Object Type:
Report
System:
The UNT Digital Library
The Ductility of Brazed Stainless Steel Joints
Abstract: "The ductility of Type 310 stainless steel T-joints brazed with GE-62 brazing alloy was measured at room temperatures 1200, 1650, and 1800 F. The measure of ductility was taken as the plastic axial strain required to crack braze fillets in T-section tensile specimens. At elevated temperatures, the ductility of as-brazed joints approximated that of the stainless steel, but at room temperature the brazed joints had only one-tenth the ductility of the base metal. Annealing for 16 hr at 1800 F in air was found to triple the room-temperature ductility of the brazed joint."
Date:
July 8, 1953
Creator:
Saller, Henry A.; Stacy, J. T. & Eddy, N. S.
Object Type:
Report
System:
The UNT Digital Library
Terminal report on the Radiolanthanum Laboratory
A report which intends to acquaint the reader with the planning of the radiochemical laboratory designed for the analytical control of the radiolanthanum process and to define the terminal status of the design of this laboratory and its equipment.
Date:
July 21, 1950
Creator:
Figenshau, J. K.
Object Type:
Report
System:
The UNT Digital Library
HASL Aerial Survey System
Radioactive debris from nuclear detonations may fall out over an extensive area. A rapid evaluation of the distribution of such surface contamination cam be obtained by an aircraft mounted detector. The gamma field measured in the aircraft can be related to the intensity on the ground. The HASL Top Hat'' system measures the radiation intensity, in an aircraft, at any altitude up to 1500 feet. The data are continuously compensated to the reading that would be obtained if the measurements were taken at three feet from thc ground surface. It will record the ground radiation field intensities from 0.01 mr/hr to 1000 r/hr. The Telepulse Coding Unit converts this information to a signal suitable for transmission to a plotting center via a standard voice radio transmitter. The transmitted signal is decoded by a Telepulse Receiving Unit and is automatically recorded on a strip chart. The radiation data must be correlated with the aircraft position to determine the location amd intensity distribution of the contaminated area.
Date:
July 29, 1957
Creator:
Cassidy, M. E.; Graveson, R. T. & LeVine, H. D.
Object Type:
Report
System:
The UNT Digital Library
Final Report on Purification of Thorium Nitrate by Solvent Extraction With Tributyl Phosphate: 1. Laboratory Investigations
Report discussing laboratory investigations of thorium nitrate purification. Batch equilibrium data, solubility data, viscosity data, density data, and the results seven batch countercurrent extraction tests and two selective stripping tests are included.
Date:
July 31, 1952
Creator:
Ewing, R. A.; Fishel, J. B.; Kiehl, S. J., Jr.; Sharpe, R. E. & Bearse, A. E.
Object Type:
Report
System:
The UNT Digital Library
Experimental Fabrication of a Lightweight Control Rod
Abstract: "The possibility of fabricating a lightweight control rod from one of several high cross-section materials was investigated. The major effort was directed toward the development of a titanium-clad rod containing a composite core of 25 weight per cent Gd2O3 in a matrix of titanium. Experimentation on both subscale and full-scale control-rod cores showed that the fabricating behavior of the two was not analogous. To roll the full-scale core successfully, it was necessary to lower the oxide content to 17 weight per cent. Subscale investigations were also carried out on titanium-cadmium, titanium-lanthanum, and titanium-gadolinium alloys."
Date:
July 1, 1952
Creator:
Saller, Henry A.; Stacy, J. T. & Keller, D. L.
Object Type:
Report
System:
The UNT Digital Library
Beryllia and Beryllia-Beryllium Bodies for Moderating Cores in Fuel Elements
From introduction: This report presents the results of the two phases of the work: study of the compatibility of beryllia bodies with a coating material, molybdenum; and studies of beryllia-beryllium body fabrication.
Date:
July 31, 1952
Creator:
Long, R. E.; Duckworth, W. H.; Saller, Henry A.; Stacy, J. T.; Miller, R. A. & Schofield, H. Z.
Object Type:
Report
System:
The UNT Digital Library
Final Report on Purification of Thorium Nitrate by Solvent Extraction With Tributyl Phosphate: 2. Mixer-Settler Pilot Plant Investigations
From abstract: "This report describes the construction and operation of a mixer-settler pilot plant for the purification of mantle-grade thorium nitrate. The liquid-liquid extraction process utilized 30% tributyl phosphate - 70% 'Solvesso-100' as the organic solvent and nitric acid as the salting agent. Continuous steady-state operation of the equipment was demonstrated, with very good recovery of thorium."
Date:
July 31, 1952
Creator:
Burkhart, C. A.; Foley, D. D.; Retzke, F. A.; Filbert, Robert B., Jr. & Clegg, John W.
Object Type:
Report
System:
The UNT Digital Library